MESON Chess Problem Database

Problem Display
PID: 234535 (1Q6/3KB3/2P3p1/p1Pp2P1/2k5/1R6/8/8 w - - 0 1)

Speckmann, Werner

Berliner Morgenpost, 1964

1Q6/3KB3/2P3p1/p1Pp2P1/2k5/1R6/8/8

#2

7 + 4

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Qf4#
    • 1...a4
      • 2.Qb4#
    • 1...d4
      • 2.Qg8#
  • Tries
    • 1.Kd6?
      • 1...a4
        • 2.Qb4#
      • 1...d4
        • 2.Qb5#
        • 2.Qg8#
      • 1...Kd4!
    • 1.Kc7?
      • 1...a4
        • 2.Qb4#
      • 1...d4
        • 2.Qg8#
      • 1...Kd4!
    • 1.Kc8?
      • 1...Kd4
        • 2.Qf4#
      • 1...a4
        • 2.Qb4#
      • 1...d4!
    • 1.Kd8?
      • 1...Kd4
        • 2.Qf4#
      • 1...a4
        • 2.Qb4#
      • 1...d4!
    • 1.Ke8?
      • 1...Kd4
        • 2.Qf4#
      • 1...a4
        • 2.Qb4#
      • 1...d4!
    • 1.Bd6?
      • 1...d4
        • 2.Qg8#
      • 1...a4
        • 2.Qb4#
      • 1...Kd4!
    • 1.Bf6?
      • threat
        • 2.Rc3#
        • 2.Qb5#
      • 1...Kxc5
        • 2.Rc3#
        • 2.Qb5#
      • 1...d4!
    • 1.Bf8?
      • 1...Kd4
        • 2.Qf4#
      • 1...a4
        • 2.Qb4#
      • 1...d4!
    • 1.Ra3?
      • 1...Kd4
        • 2.Qf4#
      • 1...d4
        • 2.Qb3#
      • 1...a4!
    • 1.Re3?
      • 1...Kd4
        • 2.Qf4#
      • 1...d4
        • 2.Qb3#
      • 1...a4!
    • 1.Rf3?
      • 1...Kd4
        • 2.Qf4#
      • 1...d4
        • 2.Qb3#
      • 1...a4!
    • 1.Rg3?
      • 1...Kd4
        • 2.Qf4#
      • 1...d4
        • 2.Qb3#
      • 1...a4!
    • 1.Rh3?
      • 1...Kd4
        • 2.Qf4#
      • 1...d4
        • 2.Qb3#
      • 1...a4!
    • 1.Qg3?
      • threat
        • 2.Qc3#
        • 2.Qd3#
      • 1...Kd4
        • 2.Qf4#
      • 1...d4!
    • 1.Qf4+?
      • 1...d4
        • 2.Qf7#
      • 1...Kxb3!
    • 1.Qe5?
      • threat
        • 2.Qc3#
      • 1...d4
        • 2.Qe6#
      • 1...Kxb3!
    • 1.Qh8?
      • threat
        • 2.Qc3#
      • 1...d4
        • 2.Qg8#
      • 1...Kxb3!
    • 1.c7?
      • 1...a4
        • 2.Qb4#
      • 1...d4
        • 2.Qg8#
      • 1...Kd4!
  • Keys
    • 1.Ke6!
      • 1...Kd4
        • 2.Qf4#
      • 1...a4
        • 2.Qb4#
      • 1...d4
        • 2.Qb5#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::QAR2(G)
    • P(b);N_GUARD::QAR1(G)
    • P(c);OGATEB,SBLOCK::QAB(G)
  • Tries
    • Try
      • K(E);P-FLIGHT
      • Vars
        • P(b);N_GUARD::QAR1(G)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • K(E);P-FLIGHT
      • Vars
        • P(b);N_GUARD::QAR1(G)
        • P(c);OGATEB,SBLOCK::QAB(G)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • K(E);S_FLIGHT
      • Vars
        • K(a);P-FLIGHT::QAR2(G)
        • P(b);N_GUARD::QAR1(G)
      • Refutation
        • P(c);
    • Try
      • K(E);P-FLIGHT
      • Vars
        • K(a);P-FLIGHT::QAR2(G)
        • P(b);N_GUARD::QAR1(G)
      • Refutation
        • P(c);
    • Try
      • K(E);S_FLIGHT
      • Vars
        • K(a);P-FLIGHT::QAR2(G)
        • P(b);N_GUARD::QAR1(G)
      • Refutation
        • P(c);
    • Try
      • B(F);
      • Vars
        • P(c);OGATEB,SBLOCK::QAB(G)
        • P(b);N_GUARD::QAR1(G)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(F);
      • Threat
        • DUALS(2)
      • Refutation
        • P(c);
    • Try
      • B(F);
      • Vars
        • K(a);P-FLIGHT::QAR2(G)
        • P(b);N_GUARD::QAR1(G)
      • Refutation
        • P(c);
    • Try
      • R(A);
      • Vars
        • K(a);P-FLIGHT::QAR2(G)
        • P(c);SBLOCK::QAB1(G)
      • Refutation
        • P(b);
    • Try
      • R(A);
      • Vars
        • K(a);P-FLIGHT::QAR2(G)
        • P(c);SBLOCK::QAB1(G)
      • Refutation
        • P(b);
    • Try
      • R(A);
      • Vars
        • K(a);P-FLIGHT::QAR2(G)
        • P(c);SBLOCK::QAB1(G)
      • Refutation
        • P(b);
    • Try
      • R(A);
      • Vars
        • K(a);P-FLIGHT::QAR2(G)
        • P(c);SBLOCK::QAB1(G)
      • Refutation
        • P(b);
    • Try
      • R(A);
      • Vars
        • K(a);P-FLIGHT::QAR2(G)
        • P(c);SBLOCK::QAB1(G)
      • Refutation
        • P(b);
    • Try
      • Q(G);
      • Threat
        • DUALS(2)
      • Vars
        • K(a);P-FLIGHT::QAR2(G)
      • Refutation
        • P(c);
    • Try
      • Q(G);CHECK
      • Vars
        • P(c);OGATEB,P_SPINP(c),SBLOCK::QAB(G)
      • Refutation
        • K(a);S_FLIGHT,XR(A)
    • Try
      • Q(G);
      • Threat
        • QAR1(G)
      • Vars
        • P(c);OGATEB,SBLOCK::QAB(G)
      • Refutation
        • K(a);S_FLIGHT,XR(A)
    • Try
      • Q(G);
      • Threat
        • QAR1(G)
      • Vars
        • P(c);OGATEB,SBLOCK::QAB(G)
      • Refutation
        • K(a);S_FLIGHT,XR(A)
    • Try
      • P(D);
      • Vars
        • P(b);N_GUARD::QAR1(G)
        • P(c);OGATEB,SBLOCK::QAB(G)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • K(E);S_FLIGHT
    • Vars
      • K(a);P-FLIGHT::QAR2(G)
      • P(b);N_GUARD::QAR1(G)
      • P(c);SBLOCK::QAB1(G)
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